Crack continuity judging system, judgment method and judgment program, crack detection device, detection method, and detection program

摘要

To detect cracks promptly with a constant degree of precision.SOLUTION: A crack detector 100 includes: a sine waveform extraction part 22 which analyzes a development image that is created by photographing an inner wall of a bore hole 2 formed in foundation ground 1, and extracts a sine waveform from the development image on the basis of a crack; and a strike/inclination acquisition part 23 which acquires the strike and inclination of the crack, from the sine waveform.SELECTED DRAWING: Figure 4